For tight contact structures on 3-dimensional manifolds, one might hope to find a similar flexible class of Legendrians. However, it is known that no suitable one exists: the standard unknot is the unique Legendrian knot in its formal isotopy class  [1]}. It is further shown there that the only topologically local structure of Legendrian curves is the number of stabilizations, and a result from  [2]} states that for any fixed \(k\) , there are formally isotopic knots which are distinct even after \(k\)  stabilizations of any type. Together these results imply there is no flexible class of Legendrian 1-knots, which can be defined independent of the global topology of the knot.
